Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 54 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/arm/omap/mpu.txt b/Documentation/devicetree/bindings/arm/omap/mpu.txt
new file mode 100644
index 000000000..f301e636f
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/omap/mpu.txt
@@ -0,0 +1,54 @@
+* TI - MPU (Main Processor Unit) subsystem
+
+The MPU subsystem contain one or several ARM cores
+depending of the version.
+The MPU contain CPUs, GIC, L2 cache and a local PRCM.
+
+Required properties:
+- compatible : Should be "ti,omap3-mpu" for OMAP3
+               Should be "ti,omap4-mpu" for OMAP4
+	       Should be "ti,omap5-mpu" for OMAP5
+- ti,hwmods: "mpu"
+
+Optional properties:
+- sram:	Phandle to the ocmcram node
+
+am335x and am437x only:
+- pm-sram: Phandles to ocmcram nodes to be used for power management.
+	   First should be type 'protect-exec' for the driver to use to copy
+	   and run PM functions, second should be regular pool to be used for
+	   data region for code. See Documentation/devicetree/bindings/sram/sram.txt
+	   for more details.
+
+Examples:
+
+- For an OMAP5 SMP system:
+
+mpu {
+    compatible = "ti,omap5-mpu";
+    ti,hwmods = "mpu"
+};
+
+- For an OMAP4 SMP system:
+
+mpu {
+    compatible = "ti,omap4-mpu";
+    ti,hwmods = "mpu";
+};
+
+
+- For an OMAP3 monocore system:
+
+mpu {
+    compatible = "ti,omap3-mpu";
+    ti,hwmods = "mpu";
+};
+
+- For an AM335x system:
+
+mpu {
+	compatible = "ti,omap3-mpu";
+	ti,hwmods = "mpu";
+	pm-sram = <&pm_sram_code
+		   &pm_sram_data>;
+};